Fan is locked when inverter is off.
Over temperature or NTC is not connected well.
Battery voltage is too high
Battery voltage is too low
Output short circuited or over temperature is detected by
internal converter components.
Output voltage is too high.
Inverter soft start failed
Over DC voltage in AC output
Output voltage is too low
PV voltage is over limitation
Fan is locked when inverter is on.
Beep three times every
second
Beep once every 0.5 second
Beep twice every 3 seconds
Beep twice every 3 seconds
High AC input (>280VAC) during
BUS soft start